64989820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{464213}}^1$

素因数の和:464229

約数の個数: 24

約数和(自身を含む): 155975904

約数和(自身を除く): 90986084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 464213, 928426, 1856852, 2321065, 3249491, 4642130, 6498982, 9284260, 12997964, 16247455, 32494910, 64989820]

約数ペア:

[(1, 64989820), (2, 32494910), (4, 16247455), (5, 12997964), (7, 9284260), (10, 6498982), (14, 4642130), (20, 3249491), (28, 2321065), (35, 1856852), (70, 928426), (140, 464213)]